Originally Posted by The Bass Stalker
I remember it being quite hard to pump.
That's due being a low volume bladder like as opposed to a sib's tube which holds much more air volume and consequently much easier to inflate.
Originally Posted by lockieboi
I wonder if the .05 bar would make a diffrence? Anyone?
Keel works along nicely when sib's tubes have been inflated to its recommended working pressure for floor fabric to stretch out and achieve along with well inflated keel a perfect formed tent like shape under deck.
Try with min 3.0 psi once sib is floating for some minutes on water for pressure to stabilize, re inflate if needed, test to higher pressures to see if any difference at all on a flat glassy no wind water cond.